Grade 7 Ultimate Q2 BMA Review

Front

What is a controlled experiment?

Back

A controlled experiment is a scientific test where one variable is changed while all others are kept constant to determine the effect of that variable.

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NGSS.MS-PS1-2

Front

What is the relationship between temperature and the rate of reaction?

Back

Generally, as temperature increases, the rate of reaction increases due to more energetic collisions between molecules.

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NGSS.HS-PS1-5

Front

In which medium do light waves travel fastest: air, water, plastic, or glass?

Back

Light waves travel fastest in air.

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NGSS.MS-PS4-2

Front

What is the amplitude of a wave?

Back

The amplitude is the distance from the crest to the trough of a wave, which is half the height of the wave.

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NGSS.MS-PS4-1

Front

What is the scientific method?

Back

The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

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NGSS.MS-PS1-2

Front

What is a variable in an experiment?

Back

A variable is any factor, trait, or condition that can exist in differing amounts or types in an experiment.

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NGSS.MS-PS2-2

Front

What is the purpose of a control group in an experiment?

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The control group serves as a baseline to compare the effects of the independent variable.

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements.

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NGSS.MS-PS3-1

Front

What is the role of a hypothesis in scientific research?

Back

A hypothesis is a testable prediction about the relationship between two or more variables.

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What is the significance of peer review in scientific research?

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Peer review ensures the research is evaluated by other experts in the field for accuracy and validity before publication.